Finding the Fourth Proportional to 72,581.76, 108,682.56 and 47,543.04

Step by Step Solution

1. Step 1: Write the proportion equation
   72,581.76 : 108,682.56 = 47,543.04 : x
2. Step 2: Convert to fraction form
   72,581.76/108,682.56 = 47,543.04/x
3. Step 3: Cross multiply
   72,581.76x = 108,682.56 × 47,543.04
4. Step 4: Simplify right side
   72,581.76x = 5,167,099,297.38
5. Step 5: Solve for x
   x = 5,167,099,297.38/72,581.76
6. Step 6: Final answer
   x = 71,190.05